Hi George,
Thanks for the info on the generators. MY EU2000 just sits and the gas goes
bad, despite the additives. The EU22i looks really nice, except it's a Euro
model (230V 50 Hz) but fuel injected. The US version (120V 60 Hz) is still
carbureted. If it had EFI I'd buy one.
You must hear okay, you worked my peanut whistle, 500W and L-loaded 55' foot
vertical over a sparse radial field. More remarkable, I heard you through the
garbage that I believe is from the water coop pumping station a couple of
blocks away. They are using some variable-frequency motors and attendant drive
electronics. I got them to shut the pumps off once and it made no difference
so I'm working to educate their tech guy and he's promised to turn everything
off as a test, but not until the WX is below 100F.
Before anyone suggests a directive RX antenna, the pumps are almost on the same
heading you are.
73, Have fun,
Wes N7WS
On Sunday, August 11, 2024 at 12:52:17 PM MST, GEORGE WALLNER
<aa7jv@atlanticbb.net> wrote:
Wes,
We are using EU22i generators, which are the newer version of the EU2000.
You can only hear their noise in a quite place, Also, we are running three
of them paralleled and their noise adds up because they are synchronized.
Anyway, using a bunch of chokes and additional grounding, we got the noise
on 160 m down to an acceptable level. Also, we now have a well situated DHDL
RX antenna that is pointed towards NA . Last night had no problem copying
NA.
TKS for all the suggestions.
GL and 73,
George
On Sat, 10 Aug 2024 21:51:45 +0000 (UTC) Wes Stewart wrote:
>
>
> George,
>
>I'm not being critical, just curious, I don't have a lot of experience, but
>I've used my EU2000 for a couple of Field Days and from a lot of RV sites and
>have never even tried to ground the thing. I park it 50-75 feet away, run an
>extension cord to the equipment and have at it. Of course I've never been on a
>quiet island but I've not had issue.
>
>Also, you've done this before from Samoa and other places (200K QSOs I
>believe) have you not seen this before? What is different this time?
>
>Wes N7WS
>
>
> On Saturday, August
>10, 2024 at 12:03:21 PM MST, GEORGE WALLNER <aa7jv@atlanticbb.net> wrote:
>
>
>
>
>Jim,
>We are using all of the cores you have given me. They help, but it is hard
>to get a good ground at the top-end of the beach where the sand is very dry
>and rocks prevent rods getting driven deep enough to reach moist ground.
>Yesterday, a bit desperate, ran a 70 foot long GND wire to water, but I
>doubt it is doing much good. We got chokes on most coax and control cables
>but without good GND their effect is limited.
>
>Using a single #31 2" core, how many turns of RG-6 do you think will give
>decent choking effect? (I know, it depends on the GND and other loading
>factors.)
>TKS for all the ferrite cores! Will let you know if we need more!
>
>GW
>
>
>
>On Sat, 10 Aug 2024 11:48:34 -0700 Jim Brown wrote:
>>Hi George,
>>
>>Remind me where to send you more cores for your next trip. :)
>>
>>In the meantime, try grounding the generator chassis (and/or grounding pin)
>>to a driven rod (or to screen/radials if you can't drive a rod). I've seen
>>reports that this can be effective with some generators on some bands.
>>
>>73, Jim K9YC
>>
>>
>>>Set up a DHDL RX antenna yesterday but it was picking up generator noise.
>>>Will move it today to reduce noise.
>>
>>
>
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